Created attachment 561187 [details]
logs

Description of problem:
Data base exception when tried to import 7 VMs to NFS DC with 2 hosts.

2012-02-12 10:35:15,306 INFO  [org.ovirt.engine.core.vdsbroker.SetVmStatusVDSCommand] (pool-5-thread-45) FINISH, SetVmStatusVDSCommand, log id: 4fd624ac
2012-02-12 10:35:15,353 INFO  [org.ovirt.engine.core.bll.SPMAsyncTask] (pool-5-thread-45) BaseAsyncTask::AddOrUpdateTaskInDB: Adding task 8b3c8e7d-f2b3-410a-ac11-3e8714394b15 to DataBase
2012-02-12 10:35:15,382 ERROR [org.ovirt.engine.core.bll.SPMAsyncTask] (pool-5-thread-45) BaseAsyncTask::AddOrUpdateTaskInDB: Adding/Updating task 8b3c8e7d-f2b3-410a-ac11-3e8714394b15 to DataBase threw an exception.: org.apache.commons.lang.SerializationException: org.codehaus.jackson.map.JsonMappingException: org.ovirt.engine.core.compat.Guid cannot be cast to [Ljava.lang.Object; (through reference chain: org.ovirt.engine.core.common.action.ImportVmParameters["vm"]->org.ovirt.engine.core.common.businessentities.VM["diskMap"]->java.util.HashMap["1"]->org.ovirt.engine.core.common.businessentities.DiskImage["childrenId"])
	at org.ovirt.engine.core.utils.serialization.json.JsonObjectSerializer.writeJsonAsString(JsonObjectSerializer.java:69) [utils-3.0.0-0001.jar:]
	at org.ovirt.engine.core.utils.serialization.json.JsonObjectSerializer.serialize(JsonObjectSerializer.java:51) [utils-3.0.0-0001.jar:]
	at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl$AsyncTaskParameterSource.serializeParameters(AsyncTaskDAODbFacadeImpl.java:74) [engine-dal.jar:]
	at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl$AsyncTaskParameterSource.<init>(AsyncTaskDAODbFacadeImpl.java:67) [engine-dal.jar:]
	at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl.getTaskParameterSource(AsyncTaskDAODbFacadeImpl.java:99) [engine-dal.jar:]
	at org.ovirt.engine.core.dao.AsyncTaskDAODbFacadeImpl.save(AsyncTaskDAODbFacadeImpl.java:104) [engine-dal.jar:]
	at org.ovirt.engine.core.bll.SPMAsyncTask.AddOrUpdateTaskInDB(SPMAsyncTask.java:105) [engine-bll.jar:]
	at org.ovirt.engine.core.bll.SPMAsyncTask.UpdateAsyncTask(SPMAsyncTask.java:118) [engine-bll.jar:]
	at org.ovirt.engine.core.bll.AsyncTaskManager.UpdateTaskWithActionParameters(AsyncTaskManager.java:457) [engine-bll.jar:]
	at org.ovirt.engine.core.bll.CommandBase.UpdateTasksWithActionParameters(CommandBase.java:860) [engine-bll.jar:]



Version-Release number of selected component (if applicable):
ovirt-engine-backend-3.0.0_0001-1.4.fc16.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Create 7 VMs with 20 GB system disk per VM
2. Export them to Export domain.
3. Remove Vms from the DC and try to import them form the export domain
  
Actual results:
Data base exception

Expected results:


Additional info: